Wireless Data Acquisition Systems

The QTM-8524 Direct Sequence Spread Spectrum (DSSS) RF modem modules are a reliable, wireless data acquisition solution for industrial monitoring and control applications. The modem modules operate in the 2.4GHz ISM band and can reach speeds up to 57.6 kbps. As a spread spectrum system they can be used alongside other radio systems with minimal signal conflict. As the modules use GMSK (Gaussian Minimum Shift Keying) modulation, they have a low bit error rate, which is ideal for use in factories and other high-noise environments. Additional advantages of the DSSS implementation are high throughput, and a noise-like signal that is particularly resistant to deliberate or accidental interception, demodulation and jamming.

The modules convert RF signals to serial RS-232 or RS-485 for communication with a PC or a serial network. They can be used to network PCs and PLCs, or they can be used in conjunction with QTM-8000 data acquisition and signal conditioning modules to create a flexible, modular data acquisition and control system that is ideal for a wide range of process and monitoring applications.

The standard package includes either an indoor/outdoor wall-mount swivel antenna or a ceiling-mount antenna. The QTMSuite software package brings the system together. It provides a Windows-based configuration utility, a DDE server, 32-bit Windows DLLs, ActiveX/OCX controls, LabView Virtual Instruments, and a custom DASYLab Driver.

Quatech, Inc., 662 Wolf Ledges Parkway, Akron, OH 44311. Tel: 330-434-3154; Fax: 330-434-1409.